Well if they have been fishing the scum line since the 70s that cannot be a major reason for the lower returns this year. I remember hearing about it in the mid 80s, I started fishing michigan steelhead in 1980.

Time for a trip north I can feel the urge again. Heck 40 degree temps in December some rain and snow melt, and all Hxxx could break lose.

I know exactly the run/pool I will be heading to for a xmas steelhead. It rarely fails me.